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In contrast, at 4200 rpm I'm just gettin ready to nail the throttle.:eek:At 5000 rpm mine feels like a turbo has just spooled up. At 6000 rpm it begins to roar at the level I enjoy. At 7000 rpm I have to shift because the MSD rev limiter makes it sound like crap when it starts robbing spark. And.......when I back off the throttle and look over at my silver-haired 59 year old wife, she grins back at me. I run a 3.70 9" independent rear. 4-speed wide ratio transmission. 22# aluminum flywheel. Solid roller cam and other stuff. Goodyear Billboard tires. My daily driver is a Toyota Yaris. 106 hp. I try to keep the engine speed below 3000 rpm. Gets 42 mpg. What a boring drive! David |
Hello everyone,
Thanks for all of the great information. I have decided against changing gear ratios. I did make an carburetor upgrade that has made a big difference. When I built the car ( 14 yrs ago ) I bought what I thought was a 750 cfm Holley Street Avenger. After removing the carb this summer for cleaning I discovered that it was actually a 650 cfm unit. I went to the Holley website and plugged my engine specs into their interactive carb selector. The software recommended several units, all of which were 750 cfm. I decided on a 750 cfm double pumper with a manual choke. The engine runs much stronger now. I bet I gained 50hp. Anyway, I now happy with what I have now and I'm going to leave things as they are. Thanks again, Roger |
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Engine plays a big role in this for sure. I would say the 466 stroker w/700HP+ and 680 ft/p torque @ 1400 makes the 3.08 a sweet spot selection for that motor. SBs with less cubes build their power higher up in the RPM range, and rev higher as a rule (vs stroked BBs) so your gearing should take that into consideration, all imho. |
just get a big block
it wont matter what gears you have.you shouldnt to dump the clutch to make it happen , with a big block you just blip the throttle and blam. its like a 2 stroke dirt bike and a 4 stroke , for every 4 gears and all the hard work on a 2 stroke ,you can get lazy on a 4 stroke.
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Winners were running with 3.46 and tko 600 standard setup O, and 17's
B i l l |
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“With 680 ft/p torque at 1400”
that is quite a number for 466 CI…. just off idle… Id like to see that dyno-sheet, sounds incredible.... Jason |
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David C7 Torque Specs The C-7 is a turbocharged inline-6 engine that is capable of producing 520 to 925 ft-lbs of torque at 1,440 rpm. Its bore and stroke is 4.33 inches by 5.0 inches and it has a displacement of 7.2 liters. |
I was trying to be ....diplomatic
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David |
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